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New lab-on-a-chip can detect heart and gum disease instantly Someday in the not-too-distant future patients may visit a doctor`s office, provide a sample of saliva or blood, and know in minutes if they are prone to heart disease, gum disease, or cancer. There would be no sending samples to off-site labs for analysis and waiting days to obtain the vital information.A five-pound, hand-held medical diagnostic device being developed at the National Nuclear Security Administration`s Sandia National Laboratories promises to be this ticket to better health for millions of Americans.
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